Figure 1

Outline map of Bangladesh with the five regions examined in this paper. The Northwest region comprises the Rangpur and Rajshahi divisions of Bangaldesh; North Central, the Mymensingh division and Dhaka division north of the Padma River; Northeast, Sylhet division; Southwest, Khulna and Barisal divisions and Dhaka division south of the Padma River; Southeast: Chittagong division.